EP0374901B1 - Mécanisme de transfert pour imprimante électrophotographique - Google Patents

Mécanisme de transfert pour imprimante électrophotographique Download PDF

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Publication number
EP0374901B1
EP0374901B1 EP89123590A EP89123590A EP0374901B1 EP 0374901 B1 EP0374901 B1 EP 0374901B1 EP 89123590 A EP89123590 A EP 89123590A EP 89123590 A EP89123590 A EP 89123590A EP 0374901 B1 EP0374901 B1 EP 0374901B1
Authority
EP
European Patent Office
Prior art keywords
paper
cut
transferring
continuous paper
continuous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89123590A
Other languages
German (de)
English (en)
Other versions
EP0374901A2 (fr
EP0374901A3 (en
Inventor
Hirotomo Aoyama
Shingo Furukawa
Satoshi Kumagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinko Seisakusho Co Ltd
Original Assignee
Sinko Seisakusho Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinko Seisakusho Co Ltd filed Critical Sinko Seisakusho Co Ltd
Publication of EP0374901A2 publication Critical patent/EP0374901A2/fr
Publication of EP0374901A3 publication Critical patent/EP0374901A3/en
Application granted granted Critical
Publication of EP0374901B1 publication Critical patent/EP0374901B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6517—Apparatus for continuous web copy material of plain paper, e.g. supply rolls; Roll holders therefor
    • G03G15/6526—Computer form folded [CFF] continuous web, e.g. having sprocket holes or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/48—Apparatus for condensed record, tally strip, or like work using two or more papers, or sets of papers, e.g. devices for switching over from handling of copy material in sheet form to handling of copy material in continuous form and vice versa or point-of-sale printers comprising means for printing on continuous copy material, e.g. journal for tills, and on single sheets, e.g. cheques or receipts
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00371—General use over the entire feeding path
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00379—Copy medium holder
    • G03G2215/00383—Cassette
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00417—Post-fixing device
    • G03G2215/00421—Discharging tray, e.g. devices stabilising the quality of the copy medium, postfixing-treatment, inverting, sorting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00443—Copy medium
    • G03G2215/00447—Plural types handled
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00443—Copy medium
    • G03G2215/00451—Paper
    • G03G2215/00455—Continuous web, i.e. roll
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00443—Copy medium
    • G03G2215/00451—Paper
    • G03G2215/00455—Continuous web, i.e. roll
    • G03G2215/00459—Fan fold, e.g. CFF, normally perforated
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00443—Copy medium
    • G03G2215/00523—Other special types, e.g. tabbed
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00556—Control of copy medium feeding

Definitions

  • the present invention relates to a paper transferring apparatus for an electrophotogragh type printer. More particularly, it relates to a paper transferring apparatus capable of treating rectangular cut papers (herein below, referred to as cut papers) and a continuous folded paper (herein below, referred to as a continuous paper).
  • cut papers rectangular cut papers
  • continuous folded paper herein below, referred to as a continuous paper
  • Figure 4 is a side view of a conventional paper transferring apparatus used for a dot impact type printer.
  • the conventional paper transferring apparatus comprises a platen 112 for printing, a printing head 113 disposed in the vicinity of the platen 112, a cut paper feeding roller 114 and a paper pressing roller 115, both being adapted to feed cut papers 111, and a tractor 117 for feeding a continuous paper 116.
  • the cut paper feeding roller 114 is separated from the platen 112 and the continuous paper is fed by the tractor 117 as shown in Figure 4B.
  • the conventional printer can treat the cut papers and the continuous paper.
  • the continuous paper is mainly used.
  • continuous printing is carried out for the cut papers depending on kinds of information outputted from a computer or the purpose of use of the information.
  • cut portions 119 are formed in a continuous paper 118 so that each of the cut papers 111 can be held by the cut portions 119. Then, it is possible to carry out continuous printing for the cut papers.
  • the above-mentioned method of printing is disclosed in, for instance, Japanese Unexamined Utility Model Application 194544/1985, Japanese Unexamined Utility Model Application 8152/1985 and so on.
  • a non-impact type high speed printer for instance, an apparatus for changing information outputted from a computer to a visible image such as characters or figures by utilizing an electrophotogragh method inclusively uses a continuous paper or a roll paper.
  • EP-A-0 235 633 decribes a paper transferring apparatus which requires separate driving sources for driving cut papers and continuous paper.
  • a preferred embodiment of the paper transferring apparatus according to the present invention will be described with reference to the drawings.
  • the same reference numerals designate the same or corresponding parts.
  • a reference numeral 1 designates an apparatus main body having at its front surface an operation panel 2 which is provided with a power switch, mode-selecting switches for selecting cut paper mode and continuous paper mode, and so on.
  • a numerals 3 designates a hopper for receiving cut papers which is provided at a side surface of the apparatus main body 1.
  • the hopper 3 is adapted to receive thereon various types of cut papers 4 depending on the purpose of use.
  • the cut papers in the hopper 3 are transferred into the apparatus main body by a cut paper transferring means which will be described below.
  • a numerals 5 designates a stacker provided at the opposite side of the hopper.
  • the stacker 5 is so adapted that when the cut papers are used, the stacker is opened by turning it downwardly so that it receives as a paper receiver the cut papers after printing operations as shown in Figure 2.
  • a numeral 5a designates a discharge port in a slit form which is formed in the stacker 5.
  • a numeral 6 designates a continuous paper.
  • the continuous paper 6 is put into the apparatus main body through an inlet port 7 formed at the lower portion of the hopper 3 and at a side surface of the apparatus main body 1 by means of a continuous paper transferring means which will be described hereinafter.
  • a numeral 8 designates a driving source for transferring the cut papers 4 or the continuous paper 6 by driving the cut paper transferring means or the continuous paper transferring means.
  • a pulse motor capable of regularly rotating and reversely rotating is used.
  • the cut paper transferring means comprises a driving source 8, a paper feeding roller 9A driven by the driving source 8 to deliver the cut papers received in the hopper 3, a feeding roller 9B for feeding the delivered cut papers to a transferring section which will be described hereinbellow, feeding rollers 9C, 9D for feeding the cut papers having passed through the transferring section toward a discharge port 5a, a transmission means for transmitting the rotational force of the driving source to each of the rollers 9A-9D and connection/disconnection means 10A, 10B which perform transmission and interruption of the rotational force to the paper feeding roller 9A and the feeding roller 9B.
  • the transmission means comprises a driving shaft 8a connected to the driving source 8 to be rotated, driving pulleys 11a, 11b, 11c attached to the driving shaft 8a, driven pulleys 12a, 12b, 12c, 12d, and transmission belts 13a, 13b, 13c extended between each pairs of the pulleys 11a, 12a, the pulleys 12b, 12c and the pulleys 11b, 12d.
  • the paper feeding roller 9A is attached to a rotary shaft for the pulley 12c.
  • the feeding roller 9B is attached to a rotary shaft for the pulley 12b.
  • the feeding roller 9C is attached to a rotary shaft for the pulley 12d.
  • the feeding roller 9D is attached to the driving shaft 8a.
  • An electromagnetic clutch 10A which constitutes one connection/disconnection means is attached to the rotary shaft of the driven pulley 12c
  • another electromagnetic clutch 10B which constitutes another one of the connection/disconnection means is attached to the rotary shaft of the driven pulley 12a.
  • These electromagnetic clutches 10A, 10B are rendered to be either state of transmission or interruption by control signals from a control means which will be described hereinafter, so that the rotational force of the driving source 8 is transmitted respectively to the paper feeding roller 9A and the feeding roller 9B in the state of transmission, or the rollers 9A, 9B are stopped due to the interruption.
  • a driven roller 14 is provided at the lower portion of the feeding roller 9B.
  • the driven roller 14 is brought to contact with the feeding roller 9B or is separated from it by the action of a solenoid 16 through a link 15.
  • Pinch rollers 17a, 17b are respectively located at the opposite side of the feeding rollers 9C, 9D with respect to a paper transferring plane.
  • a sensitized member 18, i. e. a member having sensitiveness to light and a transferring section 19 for the electrophotogragh type printer are located between the feeding roller 9B and the feeding roller 9C.
  • the paper feeding roller 9A is rotated by a predetermind quantity through the electromagnetic clutch 10A so that the cut papers 4 received in the hopper 3 are delivered one by one to the transferring section 19.
  • the continuous paper transferring means comprises the above-mentioned driving source 8, a transmission means, a first tractor 20A, a second tractor 20B and a connection/disconnection means 10c.
  • the transmission means is constituted by the driving pulley 11c attached to the driving shaft 8a, a driven pulley 12e, a transmission belt 13d extended between the driving pulley 11c and the driven pulley 12e, driven pulleys 12f, 12g and a transmission belt 13e extended between the driven pulleys 12f and 12g.
  • the first tractor 20A is connected to an extension of the rotary shaft of the driven pulley 12g, and the second tractor 20B is connected to the rotary shaft of the driven pulley 12f.
  • An electromagnetic clutch 10C as one of the connection/disconnection means is provided between the driving source 8 and the above-mentioned transmission means, e. g. between the rotary shaft of the driven pulley 12e and the rotary shaft of the driven pulley 12f.
  • the electromagnetic clutch 10C operates in such a manner that the rotational force of the driving source 8 is transmitted to the first tractor 20A and the second tractor 20B in a state of transmission by a control signal from the control means, and the rotational force of the driving source is not transmitted to the first and second tractors to stop them in a state of interruption.
  • the first tractor 20A is positioned near the inlet port 7 for a continuous paper which is formed in the apparatus main body 1, and the second tractor 20B is located at the rear side of the transferring section and between the feeding rollers 9c and 9d.
  • a reference numeral 21 designates a transferring guide which provides a transferring passage for guiding the cut papers 4 or the continuous paper 6
  • a numeral 22 designates a fixing device for fixing toner powder to a paper.
  • a cut paper detecting sensor 23A is provided between the first tractor 20A and the opposing rollers 9B, 14, and a continuous paper detecting sensor 23B is located between the second tractor 20B and the feeding roller 9D.
  • the cut paper detecting sensor 23A is to detect the front end and the rear end of each of the cut papers 4 delivered from the hopper 3, and the continuous paper detecting sensor 23D is to detect the top end of a continuous paper supplied by means of the first and second tractors 20A, 20B.
  • control means which controls each of the electromagnetic clutches 10A, 10B and 10C on the basis of a mode-selecting input signal from the operation panel 2 and a printing instruction signal from a printing controller(not shown).
  • the control means is so adapted that when the cut paper mode is selected, it determines whether or not the continuous paper detecting sensor 23B is in an ON state, and if the sensor 23B is ON, the pulse motor 8 is reversely driven and at same time, the electromagnetic clutch 10C is rendered to be a state of transmission.
  • the state of transmission is continued for a predetermined time by controlling the stepping operations of the pulse motor 8, and upon expiration of the predetermined time, the electromagnetic clutch 10C is rendered to be a state of interruption.
  • the pulse motor 8 is regularly rotated on the basis of an instruction of paper supply from the printing controller and at the same time, the electromagnetic clutch 10A is rendered to be a state of transmission.
  • the electromagnetic clutch 10A is actuated, the cut papers are delivered one by one from the hopper 3.
  • the electromagnetic clutch 10A is rendered to be a state of interruption, and then, the electromagnetic clutch 10B is rendered to be a state of transmission in synchronism with an instruction of printing from the printing controller.
  • the pulse motor 8 is regularly rotated, and at the same time, the electromagnetic clutch 10C is rendered to be a state of transmission, whereby the first tractor 20A and the second tractor 20B are rotated in predetermined directions respectively so that the movement of the tractors are controlled.
  • the continuous paper transferring means is operated to reversely transfer the continuous paper.
  • the electromagnetic clutch 10 is rendered to be a state of transmission by a control signal produced in the control means, and at the same time, the pulse motor 8 is driven in the direction reverse to the regular direction of rotation of the motor, where by the first tractor 20A and the second tractor 20B are rotated in the reverse directions.
  • the continuous paper is transferred to a predetermined position between the hopper 3 and the first tractor 20A by controlling the stepping operations of the pulse motor 8.
  • the electromagnetic clutch 10C is again rendered to be a state of interruption so that the continuous paper is stopped at a position where the delivering operations for the cut papers from the hopper 3 is not hindered by such operations.
  • the continuous paper 6 is kept without releasing from the first tractor 20A.
  • the cut paper transferring means is actuated.
  • the control means makes the electromagnetic clutch 10A to be a state of transmission, and at the same time, it makes the pulse motor 8 to rotate in the regular direction of rotation.
  • the paper feeding roller 9A is rotated in a predetermined direction through the transmission elements 8a, 11a, 12a, 13a, 12b, 12c and 13b.
  • the feeding rollers 9C, 9D are respectively rotated in the predetermined directions by means of the transmission elements 8a, 11b, 12d and 13c.
  • the paper feeding roller 9A is rotated, the delivering operations of the cut papers in the hopper 3 is executed.
  • a cut paper 4 delivered from the hopper comes between the feeding roller 9B and the driven roller 14.
  • the cut paper detecting sensor 23A detects the leading end of the cut paper, whereby the electromagnetic clutch 10A is rendered to be a state of interruption after a predetermined time has passed, namely, a time necessary for the leading end of the cut paper to reach the position between the feeding roller 9B and the driven roller 14.
  • an instruction of starting printing operation is produced from the printing controller (not shown).
  • the control means changes the electromagnetic clutch 10B to a state of transmission to thereby rotate the feeding roller 9B, and at the same time, it excites the solenoid 16 for a predetermined time so that the driven roller 14 is brought into contact with the feeding roller 9B.
  • the cut paper delivered from the hopper 3 is transferred to the transferring section 19 of the sensitized drum 18 where visible images such as characters or figures are produced at the transferring section. Then, the cut paper is passed through the transferring guide 21 and between the feed roller 9C and the pinch roller 17a which are paired to transfer the cut paper. Then, the cut paper is passed between the feeding roller 9D and the pinch roller 17b provided at the downstream side of the paired rollers 9c, 17a, the rollers 9D, 17d being paired in the same manner as the rollers 9C, 17a. Finally, the cut paper is fed to the discharge port 5a through the fixing device 22 where the toner powder forming an image is fixed on the paper. Then, cut paper is received in the stacker 5 as indicated by an imaginary line in Figure 2.
  • the electromagnetic clutch 10A is actuated by the control means to transmit the rotational force of the paper feeding roller 9A, whereby the cut papers are successively delivered from the hopper 3.
  • the cut paper detecting sensor 23A detects the leading end of a cut paper, and a detection signal from the sensor 23A is stored in a first memory device(not shown).
  • the cut paper 4 is transferred from the position of detection by the sensor 23A to the feeding roller 9B provided at a predetermined distance from the position of detection.
  • the electromagnetic clutch 10A is changed to a state of interruption by a detection signal stored in the first memory device so that transmission of the rotational force to the paper feeding roller 9A is interrupted. At this moment, the paper feeding roller 9A is only rotatable to the direction of feeding the cut papers.
  • the electromagnetic clutch 10B is actuated by a signal from the control means to thereby transmit the rotational force to the feeding roller 9B so as to move the cut paper 4 by a predetermined distance which has been previously obtained and thereafter the electromagnetic clutch 10B is turned off.
  • the rear end of the cut paper 4 is detected by the cut paper detecting sensor 23A, and a detection signal from the sensor 23A is stored in a second memory device.
  • the electromagnetic clutch 10A is again actuated by the signal of the second memory device to thereby transmit the rotational force to the paper feeding roller 9A. Then, the paper feeding operations for the next cut paper 4 become ready. Thus, the above-mentioned operations are repeatedly executed.
  • the stacker 4 When a continuous paper is to be used, the stacker 4 is previously turned to the vertical position. And, of course, a continuous paper 6 is fitted to the first tractor 20A at the inlet port 7 for the continuous paper.
  • the continuous mode is selected by operating the operation panel 2 as shown in Figure 1.
  • the electromagnetic clutches 10A, 10B for transferring the cut papers are previously turned off, whereby a rotational force transmission system for transmitting a rotation force from the driving source 8 to the paper feeding roller 9A and the feeding roller 9B is disconnected.
  • the solenoid 16 is also deenergized. Accordingly, the driven roller 14 is maintained at a position apart from the outer circumferential surface of the feeding roller 9B by a spring(not shown) through the link 15.
  • the pulse motor 8 is rotated in the regular direction by the control means in the same manner as the operation by the above-mentioned cut paper transferring means.
  • the electromagnetic clutch 10C is changed to a state of transmission by the control means. Accordingly, the rotational force of the driving source 8 is transmitted to the first tractor 20A and the second tractor 20B through the transmission elements 11c, 12e, 13d, 12f, 12g and 13e, whereby the both tractors are rotated in synchronism with each other.
  • the continuous paper inserted in the inlet port 7 is moved inside by the first tractor 20A so as to pass through the transferring guide 21.
  • Visible images such as characters and/or figures are produced on the continuous paper at the transferring section 19 at the sensitized drum 18 in accordance with an instruction of printing, and the toner powder is fixed on the paper by the fixing device 22 in the same manner as the cut paper. Then, the continuous paper 6 is successively delivered to the slit-like discharge port 5a in the stacker 5.
  • the paper transferring apparatus of the present invention is provided with the cut paper transferring means and the continuous paper transferring means wherein either of the two transferring means is actuated by selecting the different operating mode. Accordingly, different kinds of cut papers and the continuous paper can be treated by surely selecting the mode. Further, the paper transferring apparatus is provided with the connection/disconnection means which perform transmission and interruption of the rotational force of the driving source by a control signal on the basis of the selection of mode. Accordingly, it is possible to use a common driving source, which reduces the manufacturing cost.
  • the pulse motor capable of regularly and reversely rotating is used, and the continuous paper detective sensor is provided at the position toward the discharge port with respect to the second tractor.
  • the continuous paper detecting sensor is ON
  • the continuous paper is reversely moved until the leading end of the continuous paper comes near the first tractor by controlling the stepping operations of the pulse motor which is reversely rotated
  • the cut paper can be subjected to delivering, printing and discharging operations while the continuous paper is held by the first tractor. Accordingly, the operation for setting the continuous paper to the first tractor is not always necessary at the time of switching of the operation mode to the continuous mode.
  • the cut papers or the continuous paper can be used at any time by switching the operation mode on the basis of an input to the control means.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Handling Of Sheets (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Advancing Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (5)

  1. Appareil de transport de papier dans une imprimante du type électrophotographique possédant un bac de stockage (3) de papier coupé, comprenant :
    (a) un corps principal d'appareil (1) possédant une surface latérale sur laquelle sont disposés le bac (3) pour recevoir les papiers coupés (4) et un orifice d'admission (7) pour un papier en continu (6), et possédant une autre surface opposée à ladite surface latérale, dans laquelle est formé un orifice d'évacuation (5a) pour évacuer les papiers coupés (4) et le papier en continu (6),
    (b) un moyen de transport de papier coupé pour transporter les papiers coupés (4) depuis le bac (3) par l'intermédiaire d'une section de transfert, vers l'orifice d'évacuation (5a), ledit moyen de transport de papier coupé incluant au moins un rouleau d'entraînement (9A) positionné à côté du bac de stockage (3) de papier coupé de façon à entraîner les feuilles de papier coupé depuis ledit bac de stockage de papier coupé,
    (c) un moyen de transport de papier en continu pour transporter le papier en continu (6) depuis l'orifice d'admission (7) par l'intermédiaire de la section de transfert, vers l'orifice d'évacuation (5a), les moyens de transport de papier coupé (4) et de papier en continu (6) étant réalisés de manière indépendante dans le corps principal d'appareil (1),
    (d) une source d'entraînement commune (8) pour entraîner les deux dits moyens de transport, ladite source d'entraînement commune (8) comprenant un moteur pas à pas réversible entraînant à la fois ledit moyen de transport de papier coupé et ledit moyen de transport de papier en continu,
    (e) le moyen de transport de papier coupé ayant un moyen de connexion/déconnexion (10a, 10b) pour réaliser la connexion et la déconnexion de la force de rotation du moyen d'entraînement (8) au moyen de transport de papier coupé lors de la réception d'un signal de commande ;
    (f) le moyen de transport de papier en continu ayant un premier tracteur (20A) au niveau du côté orifice d'admission et ayant un second tracteur (20B) derrière ladite section de transfert dans le sens de déplacement du papier, lesdits premier et seconds tracteurs étant reliés à la source d'entraînement (8) par l'intermédiaire d'un moyen de transmission de puissance (13e), et un moyen de connexion/déconnexion (10c) intercalé entre le moyen de transmission de puissance (13e) et la source d'entraînement (8) pour réaliser la connexion et la déconnexion de la force de rotation de la source d'entraînement (8) avec les premier et second tracteurs (20A, B) lors de la réception d'un signal de commande, et
    (g) un moyen de commande pour sélectionner un mode papier coupé ou un mode papier en continu sur la base d'un signal d'entrée et pour fournir le signal de commande à chacun des moyens de connexion/déconnexion sur la base du mode sélectionné pour une instruction d'alimentation en papier ou une instruction d'impression.
  2. Appareil de transport de papier pour une imprimante du type électrophotographique selon la revendication 1, dans lequel :
       un capteur de détection de papier en continu est positionné au niveau du côté orifice de sortie par rapport au second tracteur ; et
       le moyen de commande pouvant être mis en oeuvre d'une manière telle que, sous la condition de la sélection du mode papier coupé, lorsque le capteur de détection de papier en continu est ON, le moteur pas à pas est mis en rotation en sens inverse de façon à ce que le papier en continu soit transporté en sens inverse en commandant le fonctionnement pas à pas du moteur pas à pas jusqu'à ce que le bord avant du papier en continu atteigne le voisinage du premier tracteur, et lorsque le capteur de détection de papier en continu est OFF, le moteur pas à pas est mis en rotation dans le sens normal sur la base de l'instruction d'impression.
  3. Appareil de transport de papier pour une imprimante du type électrophotographique selon la revendication 1, dans lequel le moyen de transport de papier coupé comprend des rouleaux d'alimentation en papier pour délivrer un par un les papiers coupés reçus dans le bac, des premiers rouleaux d'alimentation pour délivrer les papiers coupés pris à la section de transfert, des seconds rouleaux d'alimentation, positionnés derrière la section de transfert de façon à délivrer les papiers coupés vers l'orifice d'évacuation, et le moyen de connexion/déconnexion qui effectue la transmission et l'interruption de la force de rotation de la source d'entraînement aux rouleaux d'alimentation en papier et les premier et second rouleaux d'alimentation lors de la réception d'un signal de commande.
  4. Appareil de transport de papier selon la revendication 1, dans lequel ledit moyen de connexion/déconnexion comprend au moins un embrayage.
  5. Appareil de transport de papier selon la revendication 1, dans lequel chacun desdits tracteurs est entraîné, de manière sélective, par ledit moteur pas à pas, par l'intermédiaire d'un embrayage.
EP89123590A 1988-12-23 1989-12-20 Mécanisme de transfert pour imprimante électrophotographique Expired - Lifetime EP0374901B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63323606A JPH02175532A (ja) 1988-12-23 1988-12-23 電子写真式プリンタの用紙送り装置
JP323606/88 1988-12-23

Publications (3)

Publication Number Publication Date
EP0374901A2 EP0374901A2 (fr) 1990-06-27
EP0374901A3 EP0374901A3 (en) 1990-07-18
EP0374901B1 true EP0374901B1 (fr) 1994-11-30

Family

ID=18156594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123590A Expired - Lifetime EP0374901B1 (fr) 1988-12-23 1989-12-20 Mécanisme de transfert pour imprimante électrophotographique

Country Status (4)

Country Link
US (1) US5121867A (fr)
EP (1) EP0374901B1 (fr)
JP (1) JPH02175532A (fr)
DE (1) DE68919657T2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418793B1 (fr) * 1989-09-18 1996-01-17 Canon Kabushiki Kaisha Appareil d'enregistrement
JP3034006B2 (ja) * 1990-10-13 2000-04-17 旭光学工業株式会社 連続記録紙を用いる電子写真プリンタ
JPH06179273A (ja) * 1992-10-12 1994-06-28 Brother Ind Ltd 印字装置
SG55068A1 (en) 1993-10-29 1998-12-21 Seiko Epson Corp Printer
WO1996011111A1 (fr) * 1994-10-06 1996-04-18 Pfu Limited Systeme et dispositif d'alimentation en papier pour imprimantes
JP3023588B2 (ja) * 1994-12-19 2000-03-21 セイコープレシジョン株式会社 プリンタ
FI111011B (fi) 1997-01-15 2003-05-15 Orion Yhtymae Oyj Mikro-organismien kiinteä kasvualusta, sen valmistus ja käyttö
US6809835B2 (en) 1997-02-14 2004-10-26 Brother Kogyo Kabushiki Kaisha Printing apparatus with paper feed control
JP2000272791A (ja) * 1999-03-23 2000-10-03 Fujitsu Ltd プリンタ装置
JP5096873B2 (ja) * 2007-11-01 2012-12-12 キヤノン株式会社 印刷装置、印刷装置の制御方法及びコンピュータプログラム
JP2014018892A (ja) * 2012-07-13 2014-02-03 Mimaki Engineering Co Ltd 媒体加工装置および媒体加工方法
CN109272582A (zh) * 2018-10-30 2019-01-25 北京微卓科技股份有限公司 出票机及其出票方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865305A (en) * 1983-07-25 1989-09-12 Toshio Momiyama Paper sheet feeding apparatus
JPS60191948A (ja) * 1984-03-09 1985-09-30 Tokyo Electric Co Ltd 自動給紙装置
DE3607080A1 (de) * 1986-03-04 1987-09-10 Mannesmann Ag Vorrichtung fuer den papiertransport in druckern mit balkenfoermigem druckwiderlager, insbesondere in matrixdruckern
DE3707886A1 (de) * 1987-03-12 1988-09-22 Mannesmann Ag Vorrichtung zum zufuehren von einzelblaettern zur schreibwalze einer bueromaschine, insbesondere eines matrixdruckers
DE3807807A1 (de) * 1988-03-10 1989-09-21 Philips Patentverwaltung Bueromaschine, z. b. drucker

Also Published As

Publication number Publication date
EP0374901A2 (fr) 1990-06-27
DE68919657T2 (de) 1995-05-24
EP0374901A3 (en) 1990-07-18
US5121867A (en) 1992-06-16
JPH02175532A (ja) 1990-07-06
DE68919657D1 (de) 1995-01-12

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